Author: Uri Blass
Date: 18:44:52 11/19/04
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On November 19, 2004 at 20:11:58, ALI MIRAFZALI wrote: >This game is a part of a 8 game match that I lost ;however this very difficult >draw was interesting.Played against Default personailty (chessmaster >personality). > >[Event "?"] >[Site "?"] >[Date "2004.03.06"] >[Round ""] >[White "8000, chessmaster" (chessmaster personality)] >[Black "AliM"] >[Result "1/2-1/2"] > >1.Nf3 d5 2.d4 Nf6 3.e3 c6 4.Bd3 Bg4 5.Nbd2 e6 >6.O-O Be7 7.e4 dxe4 8.Nxe4 Nbd7 9.h3 Bh5 10.Ng3 Bg6 >11.Bxg6 hxg6 12.Bf4 O-O 13.c4 c5 14.dxc5 Bxc5 15.a3 a5 >16.Qc2 Qb6 17.Rad1 Rfd8 18.Rd2 Nf8 19.Rfd1 Rac8 20.Rxd8 Rxd8 >21.Rxd8 Qxd8 22.Ne2 Qb6 23.Nc3 Bd6 24.Be3 Qd8 25.Qb3 Qc8 >26.Qb5 Bc7 27.Bd4 N8d7 28.g3 Qb8 29.Kg2 Qc8 30.Nd2 Qb8 >31.Nde4 Nxe4 32.Nxe4 Qc8 33.f3 Kh8 34.c5 Nb8 35.Nd6 Bxd6 >36.cxd6 Nc6 37.Bb6 Qd7 38.Bc7 Qc8 39.h4 Kg8 40.Bxa5 Nxa5 >41.Qxa5 Qc2+ 42.Kh3 Qd1 43.Qc5 Qxf3 44.Kh2 Qe2+ 45.Kg1 Qe1+ >46.Kg2 Qe2+ 47.Kh1 Qf1+ 48.Kh2 Qe2+ 49.Kg1 Qe1+ 50.Kh2 Qe2+ > 1/2-1/2 >This was played on a Celeron 1.8 gig notebook.After white 41st move it is >a draw but programs do take a long time to show anything close to a draw score. >[D]2q3k1/1p3pp1/3Pp1p1/Q7/7P/P4PP1/1P4K1/8 b >In the above position ;how long does it take your favorite program to show >a near draw score? Some analysis by Movei on a slow A1000 machine It can see that white is losing the pawn at d6 but still evaluates it as positional advantage for white mainly because of pawn structure(b7 is isolated when g7 g6 are doubled pawns). depth=9 -1.37 c8c2 Nodes: 1067278 NPS: 172419 Time: 00:00:06.19 depth=9 -0.94 c8c2 g2h3 c2d1 a5c3 g8h7 c3c5 d1f3 c5c2 f3h1 h3g4 h1d5 Nodes: 5184801 NPS: 170721 Time: 00:00:30.37 depth=10 -0.64 c8c2 Nodes: 7753714 NPS: 171656 Time: 00:00:45.17 depth=10 -0.58 c8c2 g2h3 c2d1 a5c3 g8h7 d6d7 d1d7 h3g2 d7b5 c3c2 e6e5 g2f2 b5b6 f2e2 Nodes: 15899202 NPS: 173609 Time: 00:01:31.58 depth=11 -0.61 c8c2 g2h3 c2d1 a5c3 g8h7 h3g2 d1d6 f3f4 d6d5 g2f1 d5d1 f1f2 h7h6 Nodes: 27083379 NPS: 175968 Time: 00:02:33.91 depth=12 -0.51 c8c2 g2h3 c2d1 a5c3 g8h7 h3g2 d1d6 g2f2 d6b6 f2e2 b6b5 e2e3 g6g5 h4h5 h7h6 Nodes: 70039037 NPS: 176710 Time: 00:06:36.35 depth=12 -0.51 c8c2 g2h3 c2d1 a5c3 g8h7 h3g2 d1d6 g2f2 d6b6 f2e2 b6b5 e2e3 g6g5 h4h5 h7h6 Nodes: 72260682 NPS: 176827 Time: 00:06:48.65
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